/* ============================================================
   iQprofy · Nedius AI Voice Terminal — Landing
   Accent palette: #FF8800 (orange) · #7700CF (purple) · #009900 (green)
   Brand: #FF6600
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  --orange: #ff8800;
  --purple: #7700cf;
  --green: #009900;
  --brand: #ff6600;

  --orange-soft: rgba(255, 136, 0, 0.1);
  --purple-soft: rgba(119, 0, 207, 0.1);
  --green-soft: rgba(0, 153, 0, 0.1);

  --grad: linear-gradient(110deg, var(--orange) 0%, var(--brand) 35%, var(--purple) 100%);
  --grad-tri: linear-gradient(120deg, var(--orange), var(--purple) 55%, var(--green));

  --font-head: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  --radius: 20px;
  --radius-sm: 12px;
  --maxw: 1200px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.55s;

  --z-bg: 0;
  --z-base: 1;
  --z-nav: 50;
  --z-robot: 80;
  --z-modal: 100;
}

/* Dark theme (default) */
:root,
:root[data-theme="dark"] {
  --bg: #06070d;
  --bg-2: #0a0c15;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.06);
  --surface-solid: #11141f;
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #f3f5fb;
  --text-dim: #9aa3b8;
  --text-faint: #687087;
  --shadow: 0 24px 60px -24px rgba(0, 0, 0, 0.8);
  --glow: 0 0 60px -10px rgba(255, 136, 0, 0.35);
  --nav-bg: rgba(8, 9, 16, 0.6);
  /* glass backing — dark theme is intentionally less transparent for readability */
  --glass: rgba(12, 14, 24, 0.74);
  --glass-border: rgba(255, 255, 255, 0.12);
  color-scheme: dark;
}

/* Light theme */
:root[data-theme="light"] {
  --bg: #f4f5fb;
  --bg-2: #eceef7;
  --surface: rgba(255, 255, 255, 0.75);
  --surface-2: #ffffff;
  --surface-solid: #ffffff;
  --border: rgba(15, 20, 40, 0.1);
  --border-strong: rgba(15, 20, 40, 0.18);
  --text: #10131e;
  --text-dim: #4d5670;
  --text-faint: #828aa3;
  --shadow: 0 24px 50px -28px rgba(40, 30, 80, 0.35);
  --glow: 0 0 50px -12px rgba(255, 136, 0, 0.4);
  --nav-bg: rgba(255, 255, 255, 0.6);
  --glass: rgba(255, 255, 255, 0.62);
  --glass-border: rgba(15, 20, 40, 0.14);
  color-scheme: light;
}

/* ---------- Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
  min-height: 100dvh;
  transition: background 0.5s var(--ease), color 0.5s var(--ease);
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }
:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; border-radius: 6px; }

/* ---------- Background canvas + ambience ---------- */
#neural-bg {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: var(--z-bg);
  pointer-events: none;
  opacity: 0;
  transition: opacity 1.4s ease;
}
#neural-bg.ready { opacity: 1; }

.bg-veil {
  position: fixed;
  inset: 0;
  z-index: var(--z-bg);
  pointer-events: none;
  background:
    radial-gradient(60% 50% at 15% 10%, var(--orange-soft), transparent 70%),
    radial-gradient(55% 45% at 85% 25%, var(--purple-soft), transparent 70%),
    radial-gradient(60% 55% at 50% 100%, var(--green-soft), transparent 70%);
  opacity: 0.5;
}
:root[data-theme="light"] .bg-veil { opacity: 0.4; }

/* gradient text helper */
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
main { position: relative; z-index: var(--z-base); }
section { position: relative; padding: clamp(72px, 11vh, 130px) 0; }

/* glass backing panel (hero, footer) — matches the "Давайте создадим" CTA card */
.glass-panel {
  position: relative; overflow: hidden;
  background: var(--surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-strong);
  border-radius: 28px;
  box-shadow: var(--shadow);
}
.glass-panel::before { content: ""; position: absolute; inset: 0; background: var(--grad-tri); opacity: 0.1; pointer-events: none; }
.glass-panel > * { position: relative; z-index: 1; }

/* framed media (section images) */
.media-frame {
  position: relative; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border-strong); box-shadow: var(--shadow);
  background: var(--surface);
}
.media-frame img { width: 100%; height: 100%; object-fit: cover; display: block; }
.media-frame::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(6,7,13,0.35)); pointer-events: none; }
:root[data-theme="light"] .media-frame::after { background: linear-gradient(180deg, transparent 60%, rgba(20,18,40,0.12)); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-head);
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--orange);
  padding: 7px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 100px;
  background: var(--surface);
  backdrop-filter: blur(10px);
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); animation: pulse 1.8s infinite; }

h1, h2, h3 { font-family: var(--font-head); line-height: 1.08; font-weight: 700; letter-spacing: -0.02em; }
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(2rem, 4.5vw, 3.3rem); margin: 18px 0 14px; }
.section-head p { color: var(--text-dim); font-size: 1.1rem; }

/* ---------- Navbar ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: var(--z-nav);
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px;
  padding: 14px clamp(16px, 4vw, 40px);
  background: var(--nav-bg);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s, background 0.4s, padding 0.4s;
}
.nav.scrolled { border-bottom-color: var(--border); padding-top: 10px; padding-bottom: 10px; }
.brand { display: flex; align-items: center; gap: 12px; font-family: var(--font-head); font-weight: 700; font-size: 1.15rem; }
.brand .logo {
  width: 34px; height: 34px; flex: none;
  background: var(--grad);
  -webkit-mask: url("../img/iqpro-logo.svg") center / contain no-repeat;
  mask: url("../img/iqpro-logo.svg") center / contain no-repeat;
  filter: drop-shadow(0 0 10px rgba(255, 102, 0, 0.5));
}
.brand b { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.brand small { display: block; font-size: 0.62rem; letter-spacing: 0.22em; color: var(--text-faint); font-weight: 500; text-transform: uppercase; margin-top: -2px; }

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  font-size: 0.92rem; color: var(--text-dim); font-weight: 500;
  padding: 8px 14px; border-radius: 100px; transition: color 0.25s, background 0.25s;
}
.nav-links a:hover { color: var(--text); background: var(--surface); }

.nav-actions { display: flex; align-items: center; gap: 10px; }

.theme-toggle {
  width: 42px; height: 42px; border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  backdrop-filter: blur(10px);
  transition: transform 0.4s var(--ease), border-color 0.3s, background 0.3s;
}
.theme-toggle:hover { transform: rotate(25deg) scale(1.08); border-color: var(--orange); }
.theme-toggle svg { width: 20px; height: 20px; }
.theme-toggle .moon { display: none; }
:root[data-theme="dark"] .theme-toggle .sun { display: none; }
:root[data-theme="dark"] .theme-toggle .moon { display: block; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: var(--font-head); font-weight: 600; font-size: 0.95rem;
  padding: 13px 24px; border-radius: 100px;
  min-height: 46px;
  transition: transform 0.3s var(--ease), box-shadow 0.3s, filter 0.3s, background 0.3s;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 10px 30px -10px rgba(255, 102, 0, 0.6); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 18px 40px -12px rgba(255, 102, 0, 0.7); filter: brightness(1.08); }
.btn-ghost { background: var(--surface); border: 1px solid var(--border-strong); color: var(--text); backdrop-filter: blur(10px); }
.btn-ghost:hover { transform: translateY(-3px); border-color: var(--orange); background: var(--surface-2); }
.btn-sm { padding: 9px 18px; min-height: 40px; font-size: 0.88rem; }

/* ---------- Hero ---------- */
.hero { padding-top: 150px; min-height: 100dvh; display: flex; align-items: center; }
.hero-inner { max-width: var(--maxw); margin: 0 auto; text-align: center; }
.hero .glass-panel { padding: clamp(40px, 7vw, 80px) 28px; }
.hero .glass-panel > .lead { margin-left: auto; margin-right: auto; }
.hero .glass-panel .hero-stats { margin-top: 44px; padding-top: 32px; border-top: 1px solid var(--border); }
.hero h1 { font-size: clamp(2.6rem, 7vw, 5.4rem); margin: 26px 0 22px; }
.hero h1 .line { display: block; }
.hero p.lead { font-size: clamp(1.05rem, 2.2vw, 1.35rem); color: var(--text-dim); max-width: 660px; margin: 0 auto 36px; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.hero-stats { display: flex; gap: clamp(20px, 5vw, 56px); justify-content: center; flex-wrap: wrap; margin-top: 64px; }
.hero-stats .stat b { font-family: var(--font-head); font-size: clamp(1.8rem, 4vw, 2.6rem); display: block; }
.hero-stats .stat span { font-size: 0.85rem; color: var(--text-dim); letter-spacing: 0.04em; }

.scroll-hint { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); display: grid; place-items: center; gap: 8px; color: var(--text-faint); font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; }
.scroll-hint .mouse { width: 24px; height: 38px; border: 2px solid var(--border-strong); border-radius: 14px; position: relative; }
.scroll-hint .mouse::after { content: ""; position: absolute; top: 7px; left: 50%; transform: translateX(-50%); width: 4px; height: 7px; border-radius: 3px; background: var(--orange); animation: wheel 1.6s infinite; }

/* ---------- Announcement banner ---------- */
.announce { padding-top: 0; }
.announce-card {
  position: relative; overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  backdrop-filter: blur(16px);
  padding: clamp(28px, 4vw, 48px);
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; align-items: center;
  box-shadow: var(--shadow);
}
.announce-card::before { content: ""; position: absolute; inset: 0; background: var(--grad-tri); opacity: 0.08; pointer-events: none; }
.announce-card .tag { display: inline-flex; gap: 8px; align-items: center; font-family: var(--font-head); font-weight: 700; font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--purple); margin-bottom: 14px; }
:root[data-theme="dark"] .announce-card .tag { color: #c08bff; }
.announce-card h2 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); margin-bottom: 12px; }
.announce-card p { color: var(--text-dim); }
.announce-badge { display: grid; place-items: center; }
.announce-badge .ring {
  width: clamp(150px, 22vw, 210px); aspect-ratio: 1; border-radius: 50%;
  display: grid; place-items: center; text-align: center;
  border: 1px solid var(--border-strong);
  background: conic-gradient(from 180deg, var(--orange-soft), var(--purple-soft), var(--green-soft), var(--orange-soft));
  position: relative;
}
.announce-badge .ring b { font-family: var(--font-head); font-size: clamp(2rem, 5vw, 3rem); }
.announce-badge .ring span { font-size: 0.78rem; color: var(--text-dim); letter-spacing: 0.1em; }
.announce-badge .ring::after { content: ""; position: absolute; inset: -1px; border-radius: 50%; border: 2px solid transparent; border-top-color: var(--orange); animation: spin 6s linear infinite; }

/* ---------- Features grid ---------- */
.grid { display: grid; gap: 22px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  position: relative;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(14px);
  padding: 30px;
  transition: transform 0.45s var(--ease), border-color 0.4s, box-shadow 0.4s, background 0.4s;
  overflow: hidden;
}
.card::after { content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; background: var(--grad-tri); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: opacity 0.4s; pointer-events: none; }
.card:hover { transform: translateY(-8px); box-shadow: var(--shadow); background: var(--surface-2); }
.card:hover::after { opacity: 0.8; }

.card .ico {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  margin-bottom: 18px; color: #fff;
}
.card .ico svg { width: 26px; height: 26px; }
.ico.o { background: linear-gradient(135deg, var(--orange), var(--brand)); box-shadow: 0 8px 24px -8px rgba(255,136,0,0.6); }
.ico.p { background: linear-gradient(135deg, var(--purple), #a23bff); box-shadow: 0 8px 24px -8px rgba(119,0,207,0.6); }
.ico.g { background: linear-gradient(135deg, var(--green), #00c853); box-shadow: 0 8px 24px -8px rgba(0,153,0,0.6); }
.card h3 { font-size: 1.25rem; margin-bottom: 10px; }
.card p { color: var(--text-dim); font-size: 0.96rem; }

/* ---------- How it works (flow) ---------- */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; align-items: stretch; }
.flow-step { position: relative; text-align: center; padding: 26px 16px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface); backdrop-filter: blur(12px); }
.flow-step .num { font-family: var(--font-head); font-size: 0.8rem; font-weight: 700; color: var(--orange); letter-spacing: 0.1em; }
.flow-step .fico { width: 56px; height: 56px; margin: 14px auto; border-radius: 50%; display: grid; place-items: center; border: 1px solid var(--border-strong); background: var(--surface-2); color: var(--orange); }
.flow-step .fico svg { width: 26px; height: 26px; }
.flow-step h4 { font-family: var(--font-head); font-size: 1.02rem; margin-bottom: 6px; }
.flow-step p { font-size: 0.84rem; color: var(--text-dim); }
.flow-step:nth-child(2) .fico { color: var(--purple); }
.flow-step:nth-child(3) .fico { color: var(--green); }
.flow-step:nth-child(4) .fico { color: var(--orange); }
.flow-step:nth-child(5) .fico { color: var(--purple); }
.flow-arrow { display: grid; place-items: center; color: var(--text-faint); }
.flow-arrow svg { width: 22px; height: 22px; }

/* ---------- Use cases (split) ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.usecase-list { display: grid; gap: 14px; }
.usecase {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 18px 20px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface); backdrop-filter: blur(12px);
  transition: transform 0.4s var(--ease), border-color 0.4s;
}
.usecase:hover { transform: translateX(8px); border-color: var(--orange); }
.usecase .chk { flex: none; width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; background: var(--green-soft); color: var(--green); }
:root[data-theme="dark"] .usecase .chk { color: #2ee06a; }
.usecase .chk svg { width: 17px; height: 17px; }
.usecase b { font-family: var(--font-head); display: block; margin-bottom: 2px; }
.usecase span { color: var(--text-dim); font-size: 0.9rem; }

/* hardware visual */
.hw-visual { position: relative; aspect-ratio: 4/3.4; border-radius: var(--radius); border: 1px solid var(--border-strong); background: var(--surface); backdrop-filter: blur(14px); overflow: hidden; display: grid; place-items: center; box-shadow: var(--shadow); }
.hw-visual::before { content: ""; position: absolute; inset: 0; background: radial-gradient(60% 60% at 50% 40%, var(--orange-soft), transparent 70%); }
.terminal { position: relative; width: 62%; max-width: 320px; border-radius: 22px; border: 1px solid var(--border-strong); background: var(--surface-solid); padding: 22px; box-shadow: var(--shadow); }
.terminal .dots { display: flex; gap: 7px; margin-bottom: 16px; }
.terminal .dots i { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.terminal .dots i:nth-child(1){ background: var(--brand); } .terminal .dots i:nth-child(2){ background: var(--orange); } .terminal .dots i:nth-child(3){ background: var(--green); }
.terminal .wave { display: flex; align-items: center; justify-content: center; gap: 4px; height: 60px; margin: 6px 0 14px; }
.terminal .wave i { width: 4px; border-radius: 4px; background: var(--grad); animation: eq 1.1s ease-in-out infinite; }
.terminal .line-txt { height: 9px; border-radius: 5px; background: var(--surface-2); margin: 8px 0; }
.terminal .line-txt.s { width: 60%; } .terminal .line-txt.m { width: 85%; }
.terminal .mic { position: absolute; bottom: -22px; left: 50%; transform: translateX(-50%); width: 56px; height: 56px; border-radius: 50%; background: var(--grad); display: grid; place-items: center; color: #fff; box-shadow: 0 12px 30px -8px rgba(255,102,0,0.7); }
.terminal .mic::before { content: ""; position: absolute; inset: -8px; border-radius: 50%; border: 2px solid var(--orange); opacity: 0.6; animation: ripple 2s infinite; }
.terminal .mic svg { width: 24px; height: 24px; }

/* ---------- CTA ---------- */
.cta-band { text-align: center; }
.cta-card {
  position: relative; overflow: hidden;
  border-radius: 28px; border: 1px solid var(--border-strong);
  padding: clamp(40px, 7vw, 80px) 28px;
  background: var(--surface); backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}
.cta-card::before { content: ""; position: absolute; inset: 0; background: var(--grad-tri); opacity: 0.1; }
.cta-card h2 { font-size: clamp(2rem, 5vw, 3.4rem); margin-bottom: 16px; position: relative; }
.cta-card p { color: var(--text-dim); max-width: 560px; margin: 0 auto 30px; position: relative; }
.cta-card .hero-cta { position: relative; }

/* ---------- Socials ---------- */
.socials { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 40px; }
.soc {
  width: 50px; height: 50px; border-radius: 14px; display: grid; place-items: center;
  border: 1px solid var(--border); background: var(--surface); backdrop-filter: blur(10px);
  color: var(--text-dim);
  transition: transform 0.35s var(--ease), color 0.3s, border-color 0.3s, background 0.3s;
}
.soc:hover { transform: translateY(-5px) scale(1.06); color: var(--text); border-color: var(--orange); background: var(--surface-2); }
.soc svg { width: 22px; height: 22px; }

/* ---------- Footer ---------- */
.footer { padding: 0 0 36px; position: relative; z-index: var(--z-base); }
.footer-panel { padding: clamp(30px, 4vw, 50px); margin-bottom: 4px; }
.footer-grid { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; align-items: flex-start; }
.footer .brand { margin-bottom: 14px; }
.footer-col h5 { font-family: var(--font-head); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-faint); margin-bottom: 14px; }
.footer-col a { display: block; color: var(--text-dim); font-size: 0.92rem; padding: 5px 0; transition: color 0.25s; }
.footer-col a:hover { color: var(--orange); }
.footer-bottom { margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--text-faint); font-size: 0.85rem; }

/* ---------- Robot (draggable character object) ---------- */
.robot-wrap {
  position: fixed; right: 26px; bottom: 22px; z-index: var(--z-robot);
  width: 116px; height: 124px;
  touch-action: none;
}
.robot-wrap.dragging { transition: none; }

/* popups float above the robot, out of flow so the robot stays the drag bounds */
.robot-bubble {
  position: absolute; bottom: calc(100% + 12px); right: 0;
  max-width: 240px; padding: 13px 16px; border-radius: 18px 18px 4px 18px;
  background: var(--surface-solid); border: 1px solid var(--border-strong);
  box-shadow: var(--shadow); font-size: 0.88rem; color: var(--text);
  opacity: 0; transform: translateY(10px) scale(0.9); transform-origin: bottom right;
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
  pointer-events: none;
}
.robot-bubble.show { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
.robot-bubble b { color: var(--orange); font-family: var(--font-head); }
.robot-bubble .close,
.robot-banner .close { position: absolute; top: -9px; left: -9px; width: 23px; height: 23px; border-radius: 50%; background: var(--surface-solid); border: 1px solid var(--border-strong); display: grid; place-items: center; font-size: 0.78rem; color: var(--text-dim); cursor: pointer; z-index: 2; }
.robot-wrap.left .robot-bubble,
.robot-wrap.left .robot-banner { right: auto; left: 0; transform-origin: bottom left; border-radius: 18px 18px 18px 4px; }
.robot-wrap.left .robot-bubble .close,
.robot-wrap.left .robot-banner .close { left: auto; right: -9px; }

/* project announcement banner */
.robot-banner {
  position: absolute; bottom: calc(100% + 12px); right: 0;
  width: 256px; padding: 18px; border-radius: 18px;
  background: var(--surface-solid); border: 1px solid var(--border-strong);
  box-shadow: var(--shadow); text-align: left;
  opacity: 0; transform: translateY(12px) scale(0.9); transform-origin: bottom right;
  transition: opacity 0.45s var(--ease), transform 0.45s var(--ease);
  pointer-events: none;
}
.robot-banner.show { opacity: 1; transform: none; pointer-events: auto; }
.robot-banner::before { content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; background: var(--grad-tri); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0.7; pointer-events: none; }
.robot-banner .rb-eyebrow { display: inline-flex; align-items: center; gap: 6px; font-family: var(--font-head); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--orange); }
.robot-banner .rb-thumb { width: 100%; height: 88px; object-fit: cover; border-radius: 12px; margin: 10px 0; border: 1px solid var(--border); }
.robot-banner b { display: block; font-family: var(--font-head); font-size: 1.1rem; margin-bottom: 4px; }
.robot-banner p { color: var(--text-dim); font-size: 0.84rem; margin-bottom: 14px; }
.robot-banner .btn { width: 100%; }

/* the robot is a full character, floating above a soft shadow */
.robot-btn {
  width: 116px; height: 124px; background: none; position: relative;
  cursor: grab;
  transform: scale(0); animation: robotIn 0.8s var(--ease) forwards;
}
.robot-wrap.dragging .robot-btn { cursor: grabbing; }
.robot-btn:hover { animation: none; transform: translateY(-4px) scale(1.04); transition: transform 0.35s var(--ease); }

/* chest power indicator: green = on, orange = off */
.robot-btn .r-chest { stroke: #00e676; transition: stroke 0.3s ease; }
.robot-btn .r-power-dot { fill: #00e676; transition: fill 0.3s ease; }
.robot-wrap.off .robot-btn .r-chest { stroke: var(--orange); animation: none; }
.robot-wrap.off .robot-btn .r-power-dot { fill: var(--orange); }
.robot-wrap.off .r-antenna-dot { fill: var(--orange); animation: none; }
.robot-wrap.off .r-eye { fill: #6b7280; }
.robot-wrap.off .robot-svg { filter: grayscale(0.4) brightness(0.8) drop-shadow(0 16px 22px rgba(0,0,0,0.35)); opacity: 0.85; animation-play-state: paused; }
.robot-wrap.off .r-arm-r { animation: none; }

/* ---------- Full-width parallax bands (data imagery) ---------- */
.band {
  position: relative; z-index: var(--z-base);
  height: clamp(170px, 24vh, 260px);
  background-size: cover; background-position: center;
  background-attachment: fixed;
  display: grid; place-items: center;
}
.band::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(6,7,13,0.74), rgba(6,7,13,0.55)); }
.band .band-cap { position: relative; z-index: 1; text-align: center; padding: 0 20px; color: #fff; }
.band .band-cap b { font-family: var(--font-head); font-size: clamp(1.3rem, 3vw, 2.1rem); display: block; }
.band .band-cap span { display: block; margin-top: 6px; font-size: 0.95rem; color: rgba(255,255,255,0.78); letter-spacing: 0.02em; }
@media (prefers-reduced-motion: reduce) { .band { background-attachment: scroll; } }
.robot-btn .robot-svg { width: 100%; height: 100%; display: block; overflow: visible; animation: float 3.6s ease-in-out infinite; filter: drop-shadow(0 16px 22px rgba(0,0,0,0.35)); }
:root[data-theme="light"] .robot-btn .robot-svg { filter: drop-shadow(0 16px 22px rgba(80,50,140,0.22)); }
.robot-btn .r-shadow { transform-box: fill-box; transform-origin: center; animation: robotShadow 3.6s ease-in-out infinite; }
.robot-btn .r-eye { transform-box: fill-box; transform-origin: center; animation: blink 5s infinite; }
.robot-btn .r-antenna-dot { animation: pulse 1.8s infinite; transform-box: fill-box; transform-origin: center; }
.robot-btn .r-chest { animation: pulse 2.4s infinite; transform-box: fill-box; transform-origin: center; }
.robot-btn .r-arm-r { transform-box: fill-box; transform-origin: top center; animation: wave 4.5s ease-in-out infinite; }

@keyframes robotShadow { 0%,100% { transform: scaleX(1); opacity: .5; } 50% { transform: scaleX(.82); opacity: .3; } }
@keyframes blink { 0%,92%,100% { transform: scaleY(1); } 96% { transform: scaleY(0.1); } }
@keyframes wave { 0%,80%,100% { transform: rotate(0deg); } 86% { transform: rotate(-16deg); } 92% { transform: rotate(-4deg); } }

/* ---------- Projects ---------- */
.project-card {
  position: relative; display: flex; flex-direction: column;
  border-radius: var(--radius); border: 1px solid var(--border);
  background: var(--surface); backdrop-filter: blur(14px);
  overflow: hidden; transition: transform 0.45s var(--ease), border-color 0.4s, box-shadow 0.4s;
}
.project-card:hover { transform: translateY(-8px); border-color: var(--orange); box-shadow: var(--shadow); }
.project-card .pc-banner { position: relative; height: 168px; display: grid; place-items: center; overflow: hidden; }
.project-card .pc-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.project-card:hover .pc-img { transform: scale(1.07); }
.project-card .pc-banner::before { content: ""; position: absolute; inset: 0; opacity: 0.22; mix-blend-mode: overlay; z-index: 1; }
.project-card.featured .pc-banner::before { background: var(--grad-tri); opacity: 0.32; }
.project-card .pc-banner.o::before { background: linear-gradient(135deg, var(--orange), var(--brand)); }
.project-card .pc-banner.p::before { background: linear-gradient(135deg, var(--purple), #a23bff); }
.project-card .pc-banner.g::before { background: linear-gradient(135deg, var(--green), #00c853); }
.project-card .pc-banner::after { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(180deg, rgba(6,7,13,0.1) 35%, rgba(6,7,13,0.62)); }
.project-card .pc-icon { position: relative; z-index: 2; width: 60px; height: 60px; border-radius: 16px; display: grid; place-items: center; background: rgba(255,255,255,0.18); backdrop-filter: blur(6px); color: #fff; border: 1px solid rgba(255,255,255,0.3); }
.project-card .pc-icon svg { width: 30px; height: 30px; }
.project-card .pc-body { padding: 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.project-card .pc-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 2px; }
.project-card .pc-tag { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.04em; padding: 4px 10px; border-radius: 100px; background: var(--surface-2); border: 1px solid var(--border); color: var(--text-dim); }
.project-card .pc-status { position: absolute; z-index: 2; top: 14px; right: 14px; font-family: var(--font-head); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 5px 11px; border-radius: 100px; background: rgba(0,0,0,0.35); color: #fff; backdrop-filter: blur(6px); }
.project-card .pc-status.live { background: var(--green); }
.project-card h3 { font-size: 1.3rem; }
.project-card p { color: var(--text-dim); font-size: 0.95rem; flex: 1; }
.project-card .pc-link { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-head); font-weight: 600; font-size: 0.92rem; color: var(--orange); margin-top: 6px; transition: gap 0.3s var(--ease); }
.project-card .pc-link svg { width: 17px; height: 17px; transition: transform 0.3s var(--ease); }
.project-card:hover .pc-link { gap: 12px; }
.project-card.disabled .pc-link { color: var(--text-faint); cursor: default; }

/* ---------- Scroll reveal (JS-driven) ---------- */
[data-reveal] { opacity: 0; transform: translateY(40px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); will-change: transform, opacity; }
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal="left"] { transform: translateX(-50px); }
[data-reveal="right"] { transform: translateX(50px); }
[data-reveal="scale"] { transform: scale(0.9); }
[data-delay="1"] { transition-delay: 0.08s; }
[data-delay="2"] { transition-delay: 0.16s; }
[data-delay="3"] { transition-delay: 0.24s; }
[data-delay="4"] { transition-delay: 0.32s; }

/* ---------- Animations ---------- */
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.4; transform: scale(0.7); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes wheel { 0% { opacity: 1; transform: translate(-50%, 0); } 100% { opacity: 0; transform: translate(-50%, 12px); } }
@keyframes eq { 0%,100% { height: 14px; } 50% { height: 48px; } }
@keyframes ripple { 0% { transform: scale(1); opacity: 0.7; } 100% { transform: scale(1.5); opacity: 0; } }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@keyframes robotIn { 0% { transform: scale(0) rotate(-30deg); } 60% { transform: scale(1.15) rotate(8deg); } 100% { transform: scale(1) rotate(0); } }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .announce-card { grid-template-columns: 1fr; text-align: center; }
  .announce-card .tag { justify-content: center; }
  .flow { grid-template-columns: 1fr 1fr 1fr; }
  .flow-arrow { display: none; }
  .split { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 720px) {
  .nav-links { display: none; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .hero { padding-top: 120px; }
  .footer-grid { flex-direction: column; }
  .robot-wrap { right: 16px; bottom: 16px; }
  .robot-btn { width: 62px; height: 62px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}